<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>案例2链接变色</title>
    <style>
        a {
            color: black;
            text-decoration: none;
        }
        
        a:hover {
            color: aqua;
            text-decoration: none;
        }
    </style>
</head>

<body>
    <a href="#">洪潇涵</a>
</body>

</html>